London-based Glaxo bought a Wyeth vaccine factory and research site in the U.S. in September and said it is planning to double the company's annual flu shot production to 80 million doses by 2008.
``We are not going to try and constrain supply and protect the profits of Relenza,'' Garnier said today. ``The problem is it's not something easy to do. I don't know how many partners we will end up with.